Engineering CAD Design Library

Browse quality-checked 3D CAD models for engineering, product design, prototyping and manufacturing. Preview models online and download files in STEP, STP, IGES, STL, OBJ, PLY, DWG, DXF and more.

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The axis engineers actually search on — pick a part type to filter the catalog.

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Build kits

Curated systems with verified mating parts — download the whole assembly at once.

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CONSUMER ELECTRONICS

iPhone Accessory & Case Design Kit

A practical iPhone accessory cluster for designing cases, charging stands, holders and fit-checking around real phone geometry.

6 partspairs verified
DRONES / UAV

250 mm FPV Drone Build Kit

A complete FPV quad build cluster covering frame, propulsion, camera, control electronics, battery housing and mounting hardware.

9 partspairs verified
MOTION CONTROL

NEMA 17 Motion / Linear Actuator Kit

A motion-control cluster around a NEMA 17 stepper, bracket, coupler, GT2 belt, pulley, bearing and driver.

10 partspairs verified
HARDWARE

Metric Fasteners & Threaded Hardware Pack

A reusable ISO/metric fastener library cluster with screws, nuts, washers, inserts, standoffs and bolt assemblies.

6 partspairs verified
3D PRINTING

3D Printer Motion & Extruder Upgrade Kit

A 3D-printer upgrade cluster combining hotend parts, filament handling, stepper drive and motion hardware.

14 partspairs verified
ELECTRONICS PROTOTYPING

Arduino / ESP32 Prototyping Kit

A maker electronics cluster with Arduino, ESP32, breadboard, shield, servo, battery holder and enclosure.

13 partspairs verified
ROBOTICS

Robotic Arm + Gripper Kit

A robotic manipulator cluster with 6-DOF arm, gripper, wrist, servo mounts, actuator and linear guide components.

12 partspairs verified
CNC MACHINING

CNC Workholding & Tooling Kit

A CNC machining cluster covering table, clamping, vise, chuck, collet holder, spindle and ball-screw motion.

14 partspairs verified
HVAC / DUCTING

HVAC Ventilation Duct Assembly Kit

A ventilation product cluster with grille, damper, duct adapter, fan, filter, flange and duct clamp.

8 partspairs verified
FLUID POWER

Hydraulic / Pneumatic Pump & Valve Manifold Kit

A fluid-power cluster combining pump, valves, pressure gauge, manifold block, pipe and coupling parts.

16 partspairs verified
MOBILE ROBOTICS

RC / Line-Follower Robot Chassis Kit

A small mobile-robot cluster with chassis, wheels, hubs, motors, motor mounts, controller, battery holder and damper.

16 partspairs verified
WORKSPACE ACCESSORIES

Desk Cable + Phone Stand Workstation Kit

A desk-organization product cluster combining cable routing, phone holders, headphone stands and laptop/iMac stands.

8 partspairs verified
CAMERA / IMAGING RIGS

Camera Gimbal & Mount Rig Kit

A camera-rig cluster with gimbal, camera modules, tripod, tilt head, GoPro mount and camera bracket parts.

8 partspairs verified
AUTOMOTIVE & MOBILITY

1:10 RC Car Drivetrain & Suspension Kit

A 1:10 RC Car Drivetrain & Suspension Kit cluster covering related CAD components for Automotive & Mobility.

5 partspairs verified
ROBOTICS & MECHATRONICS

Arduino / ESP32 Prototyping Kit; CNC Workholding & Tooling Kit

A Arduino / ESP32 Prototyping Kit; CNC Workholding & Tooling Kit cluster covering related CAD components for Robotics & Mechatronics.

1 partpairs verified
MOTORS & POWER TRANSMISSION

Arduino / ESP32 Prototyping Kit; RC / Line-Follower Robot Chassis Kit

A Arduino / ESP32 Prototyping Kit; RC / Line-Follower Robot Chassis Kit cluster covering related CAD components for Motors & Power Transmission.

1 partpairs verified
HYDRAULICS & PNEUMATICS

Belt & Roller Conveyor Design Kit

A Belt & Roller Conveyor Design Kit cluster covering related CAD components for Hydraulics & Pneumatics.

9 partspairs verified
PUMPS & FLUID SYSTEMS

Centrifugal Pump & Motor Skid Kit

A Centrifugal Pump & Motor Skid Kit cluster covering related CAD components for Pumps & Fluid Systems.

8 partspairs verified
GENERAL ENGINEERING

Honda C-Series Engine Parts Pack

A Honda C-Series Engine Parts Pack cluster covering related CAD components for General Engineering.

4 partspairs verified
VALVES & FLOW CONTROL

Hydraulic / Pneumatic Pump & Valve Manifold Kit; Industrial Valve & Actuation Pack

A Hydraulic / Pneumatic Pump & Valve Manifold Kit; Industrial Valve & Actuation Pack cluster covering related CAD components for Valves & Flow Control.

1 partpairs verified
ENCLOSURES & PANELS

IP65/IP67 Electrical Enclosure & Control Panel Pack

A IP65/IP67 Electrical Enclosure & Control Panel Pack cluster covering related CAD components for Enclosures & Panels.

9 partspairs verified
GENERAL ENGINEERING

Industrial Gearmotor & Drive Kit

A Industrial Gearmotor & Drive Kit cluster covering related CAD components for General Engineering.

9 partspairs verified
VALVES & FLOW CONTROL

Industrial Valve & Actuation Pack

A Industrial Valve & Actuation Pack cluster covering related CAD components for Valves & Flow Control.

9 partspairs verified
PUMPS & FLUID SYSTEMS

Peristaltic / Dosing Pump Prototyping Kit

A Peristaltic / Dosing Pump Prototyping Kit cluster covering related CAD components for Pumps & Fluid Systems.

9 partspairs verified
ROBOTICS & MECHATRONICS

Raspberry Pi Case & Display Kit

A Raspberry Pi Case & Display Kit cluster covering related CAD components for Robotics & Mechatronics.

6 partspairs verified
ENGINES & POWERTRAIN

Superquadro Engine Internals Kit

A Superquadro Engine Internals Kit cluster covering related CAD components for Engines & Powertrain.

4 partspairs verified
PUMPS & FLUID SYSTEMS

Vacuum Pump System Pack

A Vacuum Pump System Pack cluster covering related CAD components for Pumps & Fluid Systems.

9 partspairs verified
10,000+ models2D drawings
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Free
I2C Temperature and Humidity Sensor Model for Arduino and ESP Devices
ELECTRICAL · I2C SENSOR

I2C Temperature and Humidity Sensor Model for Arduino and ESP Devices

.STEP
Free
SHT3X I2C Temperature and Humidity Sensor Model for Arduino and ESP Devices
ELECTRICAL · SHT3X

SHT3X I2C Temperature and Humidity Sensor Model for Arduino and ESP Devices

.STEP
Free
Efficient Wood-Burning Heating Stove with Advanced Heat Exchange and Smart Controls
ENERGY AND POWER · WOOD-BURNING STOVE

Efficient Wood-Burning Heating Stove with Advanced Heat Exchange and Smart Controls

.STEP
Free
High-Precision CAD Model of BME280 Environmental Sensor Board
ELECTRICAL · BME280

High-Precision CAD Model of BME280 Environmental Sensor Board

.STEP

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3D Model of SkyRC GC301 Steering Gyro Sensor for RC Cars
ROBOTICS · SKYRC GC301

3D Model of SkyRC GC301 Steering Gyro Sensor for RC Cars

.STEP
Free
Sensirion SHT4xI Membrane Humidity and Temperature Sensor with I2C Interface
ELECTRICAL · SENSIRION SHT4XI

Sensirion SHT4xI Membrane Humidity and Temperature Sensor with I2C Interface

.STEP
Free
Sensirion SHT4xI Humidity and Temperature Sensor with I2C Interface
ELECTRICAL · SENSIRION SHT4XI

Sensirion SHT4xI Humidity and Temperature Sensor with I2C Interface

.STEP
Free
EE364 Compact Inline Sensor for Oil Moisture and Temperature Monitoring
ENERGY AND POWER · EE364

EE364 Compact Inline Sensor for Oil Moisture and Temperature Monitoring

.STEP
Free
DTH-11 Temperature and Humidity Sensor CAD Models
ELECTRICAL · DTH-11

DTH-11 Temperature and Humidity Sensor CAD Models

.STEP
Free
ESP32-WROOM-32 Wi-Fi and Bluetooth Module Overview
ELECTRICAL · ESP32-WROOM-32

ESP32-WROOM-32 Wi-Fi and Bluetooth Module Overview

.STEP
Free
Vacuum Tube-Type Quenching Machine for Precision Heat Treatment
INDUSTRIAL DESIGN · VACUUM TUBE QUENCHING MACHINE

Vacuum Tube-Type Quenching Machine for Precision Heat Treatment

.STEP
Free
Protective Case for Arduino Board with OLED Display and AHT Sensor
ARDUINO

Protective Case for Arduino Board with OLED Display and AHT Sensor

.STEP
Free
3D Printed Protective Case for Environmental Sensor
3D PRINTING · 3D PRINTED CASE

3D Printed Protective Case for Environmental Sensor

.STEP
Free
Temperature Sensor AM2302 DHT22 - Reliable Environmental Monitoring
ELECTRICAL · AM2302

Temperature Sensor AM2302 DHT22 - Reliable Environmental Monitoring

.STEP
Free
NTC Thermistor Round 10k 5.2mm Pitch 2.65mm Diameter 3.6mm Height
ELECTRICAL · NTC THERMISTOR

NTC Thermistor Round 10k 5.2mm Pitch 2.65mm Diameter 3.6mm Height

.STEP
Free
Silicone Heating Pad 300x700mm 120V 700W for 3D Printers
3D PRINTING · SILICONE HEATING PAD

Silicone Heating Pad 300x700mm 120V 700W for 3D Printers

.STEP
Free
Silicone Heating Pad 300x700 mm 120V 700W with Center Mount Thermistor
INDUSTRIAL DESIGN · SILICONE HEATING PAD

Silicone Heating Pad 300x700 mm 120V 700W with Center Mount Thermistor

.STEP
Free
Thermistor JNR NTC - Precision Temperature Sensor Model
ELECTRICAL · THERMISTOR JNR NTC

Thermistor JNR NTC - Precision Temperature Sensor Model

.STEP
Free
PTC Thermistor MCL20 Model for Engineering Applications
ELECTRICAL · PTC THERMISTOR MCL20

PTC Thermistor MCL20 Model for Engineering Applications

.STEP
Free
PTC Thermistor by Vishay - Reliable Temperature Sensing Component
ELECTRICAL · PTC THERMISTOR

PTC Thermistor by Vishay - Reliable Temperature Sensing Component

.STEP
Free
PTC Thermistor by Vishay - Reliable Temperature Sensing Component
ELECTRICAL · PTC THERMISTOR

PTC Thermistor by Vishay - Reliable Temperature Sensing Component

.STEP
Free
Detailed Aluminium Hotend Block with Accurate Mass and Assembly Components
3D PRINTING · ALUMINIUM HOTEND BLOCK

Detailed Aluminium Hotend Block with Accurate Mass and Assembly Components

.STEP